1,191 results match your criteria: "The University of Texas at Brownsville & Texas Southmost College[Affiliation]"

Article Synopsis
  • Social determinants of health (SDoH) are conditions affecting individuals' health based on societal, community, and personal factors, highlighting a need for a broader understanding beyond just biomedical aspects.
  • The goal is to create a computable artifact that links health data with various SDoH levels, enhancing research and clinical insights by connecting biological factors to social and economic contexts.
  • An experimental ontology was built from 27 sources to systematically represent these determinants, leading to a revised ontology that comprehensively covers topics like health policy, income inequality, and socioeconomic issues at different levels.
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A large portion of the heterogeneity in coronavirus disease 2019 (COVID-19) susceptibility and severity of illness (SOI) remains poorly understood. Recent evidence suggests that SARS-CoV-2 infection-associated damage to alveolar epithelial type 2 cells (AT2s) in the distal lung may directly contribute to disease severity and poor prognosis in COVID-19 patients. Our in vitro modeling of SARS-CoV-2 infection in induced pluripotent stem cell (iPSC)-derived AT2s from 10 different individuals showed interindividual variability in infection susceptibility and the postinfection cellular viral load.

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Confrontational naming is widely used in diagnosing neurodegenerative disorders like MCI and dementia, and previous research indicates that healthy Non-Hispanic Whites outperform Hispanics in such tasks. However, understanding the factors contributing to score differences among ethnic groups remains limited. This study focuses on cognitively intact Mexican Americans and Non-Hispanic White older adults from the TARCC Hispanic Cohort project.

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Lifespan reference curves for harmonizing multi-site regional brain white matter metrics from diffusion MRI.

bioRxiv

March 2024

Imaging Genetics Center, USC Mark and Mary Stevens Neuroimaging and Informatics Institute, Keck School of Medicine of USC, Marina del Rey, CA, USA.

Article Synopsis
  • The study investigates how white matter (WM) microstructure develops and declines with age, creating reference curves to track these changes throughout the human lifespan using data from 40,898 subjects aged 3 to 95.
  • They employed diffusion MRI (dMRI) techniques and found that the ComBat-GAM method harmonized data most effectively, aligning with known WM maturation patterns.
  • The research also revealed that the ApoE4 gene, linked to dementia risk, affects WM microstructure even in healthy individuals, highlighting significant interactions between age and genetic factors across different brain regions.
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Promoting diverse perspectives: Addressing health disparities related to Alzheimer's and all dementias.

Alzheimers Dement

April 2024

Medical & Scientific Relations, Alzheimer's Association, Chicago, Illinois, USA.

Dementia research lacks appropriate representation of diverse groups who often face substantial adversity and greater risk of dementia. Current research participants are primarily well-resourced, non-Hispanic White, cisgender adults who live close to academic medical centers where much of the research is based. Consequently, the field faces a knowledge gap about Alzheimer's-related risk factors in those other groups.

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Atlantic tarpon (Megalops atlanticus) are capable of long-distance migrations (hundreds of kilometers) but also exhibit resident behaviors in estuarine and coastal habitats. The aim of this study was to characterize the spatial distribution of juvenile tarpon and identify migration pathways of adult tarpon in the northern Gulf of Mexico. Spatial distribution of juvenile tarpon was investigated using gillnet data collected by Texas Parks and Wildlife Department (TPWD) over the past four decades.

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Genetic regulatory effects in response to a high-cholesterol, high-fat diet in baboons.

Cell Genom

March 2024

Center for Precision Medicine, Wake Forest University School of Medicine, Winston-Salem, NC 27157, USA; Southwest National Primate Research Center, Texas Biomedical Research Institute, San Antonio, TX 78229, USA. Electronic address:

Steady-state expression quantitative trait loci (eQTLs) explain only a fraction of disease-associated loci identified through genome-wide association studies (GWASs), while eQTLs involved in gene-by-environment (GxE) interactions have rarely been characterized in humans due to experimental challenges. Using a baboon model, we found hundreds of eQTLs that emerge in adipose, liver, and muscle after prolonged exposure to high dietary fat and cholesterol. Diet-responsive eQTLs exhibit genomic localization and genic features that are distinct from steady-state eQTLs.

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Current and Future Approaches to Pediatric Anxiety Disorder Treatment.

Am J Psychiatry

March 2024

Section on Development and Affective Neuroscience, Emotion and Development Branch, NIMH, Bethesda, Md. (Zugman, Winkler, Qamar, Pine); Division of Human Genetics, School of Medicine, University of Texas Rio Grande Valley, Brownsville (Winkler).

This overview critically appraises the literature on the treatment of pediatric anxiety disorders. The two established treatments for these conditions comprise cognitive-behavioral therapy (CBT) and antidepressant medications. Many youths receiving these treatments fail to achieve remission, which creates a need for new treatments.

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Neurodegenerative diseases (NDDs), including Alzheimer's disease (AD), Parkinson's disease (PD), and amyotrophic lateral sclerosis (ALS), are gradually becoming a burden to society. The adverse effects and mortality/morbidity rates associated with these NDDs are a cause of many healthcare concerns. The pathologic alterations of NDDs are related to mitochondrial dysfunction, oxidative stress, and inflammation, which further stimulate the progression of NDDs.

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Painted turtles are remarkable for their freeze tolerance and supercooling ability along with their associated resilience to hypoxia/anoxia and oxidative stress, rendering them an ideal biomedical model for hypoxia-induced injuries (including strokes), tissue cooling during surgeries, and organ cryopreservation. Yet, such research is hindered by their seasonal reproduction and slow maturation. Here we developed and characterized adult stem cell-derived turtle liver organoids (3D self-assembled in vitro structures) from painted, snapping, and spiny softshell turtles spanning ~175My of evolution, with a subset cryopreserved.

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Article Synopsis
  • * The program has expanded to two additional Texas institutions, gathering insights from 116 Community Scientists and 64 researchers over 100 feedback sessions to evaluate its impact and effectiveness.
  • * Findings show that Community Scientists gained a deeper understanding and shifted their views on research, while all participating researchers reported satisfaction with the program, indicating it positively influenced their research practices and aims to reduce health disparities.
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Background And Goals: One of the biggest difficulties facing healthcare systems today is the prevalence of multiple chronic diseases (MCC). Mortality and the development of new chronic illnesses are more likely in those with MCC. Pre-existing diseases and risk factors specific to the patient have an impact on the complex stochastic process that guides the evolution of MCC.

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Article Synopsis
  • Timely follow-up of abnormal cervical cancer screening results is crucial for reducing the incidence of cervical cancer, and this study reviews various interventions aimed at improving this follow-up process.
  • The study analyzed publications from 2000 to 2022, focusing on different types of studies and interventions that aim to increase women's follow-up after abnormal screening, assessing outcomes like appointment attendance and timely diagnoses.
  • Out of 7,457 studies screened, 28 were included, with 39% being randomized; the majority focused on measuring follow-up completion as a key outcome of the interventions.
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Article Synopsis
  • Recent advancements in plasma lipidomic profiling have improved the specificity and accuracy of lipid measurements, but aligning datasets from different times or platforms remains challenging.
  • A new framework is introduced to harmonize these lipidomic datasets using elastic-net prediction models and high-resolution reference datasets to predict unmeasured lipid species.
  • This method was demonstrated by imputing unmeasured lipids from a larger cohort into a smaller study, allowing for better model validation and integration of lipidomic data.
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Ethnic differences exist in the United States in the interrelated problems of diabetes (DM), peripheral arterial disease (PAD), and leg amputations. The purpose of this study was to determine the prevalence and risk factor associations for subclinical PAD in a population sample of Mexican Americans using the ankle brachial (ABI) index. The ABI-High (higher of the two ankle pressures/highest brachial pressure) and ABI-Low (lower of the two ankle pressures/highest brachial pressure) were calculated to define PAD.

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Psychosocial outcomes of children born via embryo donation.

Hum Reprod

April 2024

Department of Obstetrics and Gynecology, Boonshoft School of Medicine, Wright State University, Fairborn, OH, USA.

Study Question: What are parents' perceptions of their relationships with and the psychosocial adjustments of their children who are born via embryo donation?

Summary Answer: Families created through embryo donation have well-adjusted parent-child relationships and reassuring child psychosocial outcomes.

What Is Known Already: Embryo donation is an effective and growing form of third-party reproduction, but there is limited research in this field. Prior studies suggest that families created through gamete donation function well regarding parent-child relationship quality and child behavioral and socioemotional adjustment.

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Background: Because pediatric anxiety disorders precede the onset of many other problems, successful prediction of response to the first-line treatment, cognitive-behavioral therapy (CBT), could have major impact. However, existing clinical models are weakly predictive. The current study evaluates whether structural and resting-state functional magnetic resonance imaging can predict post-CBT anxiety symptoms.

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Parkinson's disease (PD) is a neurological disorder that affects dopaminergic neurons. The lack of understanding of the underlying molecular mechanisms of PD pathology makes treating it a challenge. Several pieces of evidence support the protective role of enriched environment (EE) and exercise on dopaminergic neurons.

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Neurofibromatosis type 1 (NF1) is caused by mutations in the gene. The clinical presentation of NF1 includes diverse neurological issues in pediatric and adult patients, ranging from learning disabilities, motor skill issues, and attention deficit disorder, to increased risk of depression and dementia. Preclinical research suggests that abnormal neuronal signaling mediates spatial learning and attention issues in NF1; however, drugs that improve phenotypes in models show inconclusive results in clinical trials, highlighting the need for a better understanding of NF1 pathophysiology and broader therapeutic options.

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A genetic association study of circulating coagulation factor VIII and von Willebrand factor levels.

Blood

May 2024

Department of Epidemiology, Human Genetics, and Environmental Sciences, Human Genetics Center, School of Public Health, The University of Texas Health Science Center at Houston, Houston, TX.

Article Synopsis
  • * Discovery of 7 new genetic loci associated with FVIII and 1 new locus for VWF, supporting their roles in thrombotic outcomes via Mendelian randomization.
  • * Functional testing revealed that silencing genes like B3GNT2 and CD36 impacted FVIII and VWF release from endothelial cells, indicating their potential regulatory roles.
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Paternò-Büchi Reaction Mass Spectrometry Enables Positional Assignment of Polymethylene-Interrupted Double Bonds in Food-Derived Lipids.

J Agric Food Chem

February 2024

Dell Pediatric Research Institute, Departments of Pediatrics, of Chemistry, and of Nutrition, University of Texas at Austin, 1400 Barbara Jordan Blvd, Austin, Texas 78723, United States.

Fatty acids (FAs) containing polymethylene-interrupted (PMI) double bonds are a component of human foods; however, they present a significant analytical challenge for identification. Covalent adduct chemical ionization and ozone-induced dissociation mass spectrometry (MS) methods enable unambiguous assignment of PMI-FA double bond positions, however, no method has been reported with electrospray ionization (ESI) platform using off-the-shelf systems. In the current work, we studied the Paternò-Büchi (PB) fragmentation patterns of PMI-FA and triacylglycerol (TG) by analyzing several known food sources.

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Association of Variability and Hypertensive Loads in 24-h Blood Pressure With Mortality and Cardiovascular Risk.

Am J Hypertens

April 2024

Institute of Neuroscience, Neuro and Behavioral Health INtegrated Service Unit, School of Medicine, University of Texas Rio Grande Valley, Harlingen, Texas, USA.

Background: Evidence shows that high 24-h blood pressure (BP) variability increases cardiovascular risk. We investigated whether 24-h BP variability relates to mortality and cardiovascular risk due to inherent variability and/or hypertensive loads in 24-h BP.

Methods: A total of 1,050 participants from the Maracaibo Aging Study (mean age, 66 years; women, 67.

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Exploitation of environmental DNA (eDNA) for ecotoxicological research: A critical review on eDNA metabarcoding in assessing marine pollution.

Chemosphere

March 2024

Biochemistry and Molecular Biology Program, School of Integrative Biological and Chemical Sciences, University of Texas Rio Grande Valley, Brownsville, Texas, USA; School of Earth, Environmental, and Marine Sciences, University of Texas Rio Grande Valley, Brownsville, Texas, USA. Electronic address:

The rise in worldwide population has led to a noticeable spike in the production, consumption, and transportation of energy and food, contributing to elevated environmental pollution. Marine pollution is a significant global environmental issue with ongoing challenges, including plastic waste, oil spills, chemical pollutants, and nutrient runoff, threatening marine ecosystems, biodiversity, and human health. Pollution detection and assessment are crucial to understanding the state of marine ecosystems.

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Background: Intravoxel incoherent motion (IVIM) diffusion weighted MRI (DWI) has potential for evaluating hepatic fibrosis but image acquisition technique influence on diffusion parameter estimation bears investigation.

Purpose: To minimize variability and maximize repeatably in abdominal DWI in terms of IVIM parameter estimates.

Study Type: Prospective test-retest and image quality comparison.

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Article Synopsis
  • X-chromosomal genetic variants can provide important information about differences in human traits and diseases between sexes.
  • A large-scale study analyzed kidney-related traits in nearly 909,000 individuals, finding 23 genetic loci linked to uric acid levels and estimated glomerular filtration rate (eGFR), including four new genes that may play a role in kidney function.
  • The research also discovered five novel sex-specific interactions, with variations showing different effects in males and females, and highlighted genes that are responsive to androgens (male hormones), indicating a complex relationship between sex and kidney-related genetics.
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